Machine Description&colon;Ideal punching&comma; marking & shearing machine for angles in steel tower industry&period;The angle line is a professional automatic machine for marking&comma; punching and cutting of angle bars of power transmission tower and telecommunication tower&period; It includes 6 parts&colon; Material-uploading&comma; infeed conveyor&comma; main machine body&comma; outfeed conveyor for finished angle bar&comma; hydraulic pneumatic system&comma; electric control&period;Machine Features&colon;1&period; Good rigidity&comma; compact structure&comma; optimized arrangement of work pieces&comma; good function of cutting integrated&comma; high material using rate&period;2&period; Marking&comma; punching&comma; cutting&comma; are automatically operated with high efficiency&period;3&period; The shearing unit adopts single blade shearing&comma; reducing the waste of materials and improving material using rate&period;4&period; Computer has friendly interface&comma; which can show work piece's figure&comma; easy for operation&period;5&period; Easy programming&comma; only need to input the data of work piece size&comma; hole diameter&comma; back mark value and quantity wanted for finished pieces&period; Or the programming data created from sample yardage software can also be directly used6&period; Many solutions are adopted to resolve problems of difficult infeeding angle bar and back mark error which are caused by angle bar deformation&period;7&period; With PLC and servo motor the machine can get high efficiency and stable work accuracy&period;8&period; The control system has self-diagnose and data statistics9&period; The key hydraulic&comma; pneumatic and electrical components are all imported&period;